If a pregnant woman is inadvertently infected with omicron virus, it may affect the development of the fetus and the health of the pregnant woman. Omicron is a new mutated strain of the New Coronavirus, which is highly infectious and transmissible. During pregnancy, the resistance of pregnant women is lower than that of normal people, and they are more likely to be infected with Omicron if they do not take proper protective measures. If a pregnant woman is inadvertently infected with Omicron, she may suffer from fever, cough, fatigue, loss of taste and other discomforts, which will not only jeopardize her health, but also affect the normal growth of the fetus, and in severe cases, may cause cessation of development of the fetus, which is a greater impact on the pregnant woman’s health. The treatment of omikron requires active treatment to control the disease on the one hand, and strict isolation to prevent the spread of the disease on the other. To prevent Omicron, pregnant women are advised to avoid going to densely populated areas, stay away from high-risk areas and wear protective masks when going out. If omicron virus infection is confirmed, they should go to the local hospital for immunization and take relevant treatment measures under the guidance of doctors.